A Milwaukee man whose stun gun was used in the theft of a $5 million Stradivarius violin in January has been sentenced to 3½ years in prison.

Universal K. Allah pleaded guilty in May to being party to felony robbery. Milwaukee County Judge Dennis Moroney told him Thursday it was "disconcerting" that he would engage in a crime that caused so much pain to his community.

Salah Salahadyn is also charged in this case. His plea hearing was postponed Thursday after his public defender withdrew from the case for unspecified reasons.

Court documents say Salahadyn was the aggressor who'd been plotting to steal a Stradivarius.

Prosecutors say Salahadyn used Allah's stun gun to attack a concertmaster and steal his violin following a performance. The violin was recovered in good condition.